Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/BasicMathFunctions/dot_prod.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65

#include "ref.h"

void ref_dot_prod_f32(
  float32_t * pSrcA,
  float32_t * pSrcB,
  uint32_t blockSize,
  float32_t * result)
{
	uint32_t i;
  float32_t sum = 0.0f;
	
	for(i=0;i<blockSize;i++)
	{
		sum += pSrcA[i] * pSrcB[i];
	}
  *result = sum;
}

void ref_dot_prod_q31(
  q31_t * pSrcA,
  q31_t * pSrcB,
  uint32_t blockSize,
  q63_t * result)
{
	uint32_t i;
  q63_t sum = 0.0f;
	
	for(i=0;i<blockSize;i++)
	{
		sum += ((q63_t)pSrcA[i] * pSrcB[i]) >> 14; //16.48
	}
  *result = sum;
}

void ref_dot_prod_q15(
  q15_t * pSrcA,
  q15_t * pSrcB,
  uint32_t blockSize,
  q63_t * result)
{
	uint32_t i;
  q63_t sum = 0.0f;
	
	for(i=0;i<blockSize;i++)
	{
		sum += (q31_t)pSrcA[i] * pSrcB[i]; //34.30
	}
  *result = sum;
}

void ref_dot_prod_q7(
  q7_t * pSrcA,
  q7_t * pSrcB,
  uint32_t blockSize,
  q31_t * result)
{
	uint32_t i;
  q31_t sum = 0.0f;
	
	for(i=0;i<blockSize;i++)
	{
		sum += (q31_t)pSrcA[i] * pSrcB[i]; //18.14
	}
  *result = sum;
}